Best Open Source Alternatives to Amazon Polly

Compare the best free and open-source alternatives to Amazon Polly — self-hosted and desktop replacements you fully control, ranked by GitHub stars, license and platform support.

Curated by open-source.store · Updated November 2026 · 6 alternatives

Amazon Polly

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Amazon Polly alternatives compared

Open-source alternatives to Amazon Polly, compared by stars, license and platform
Tool		License	Platforms	Self-hosted
Coqui TTS	46,177	MPL-2.0	LinuxmacOSWindowsDocker	Yes	Aug 2024	Visit
Suno Bark	39,285	MIT	LinuxmacOSWindows	No	Aug 2024	Visit
Sherpa ONNX	15,686	Apache-2.0	LinuxmacOSWindowsandroid	No	Oct 2026	Visit
Tortoise TTS	14,892	Apache-2.0	LinuxmacOSWindows	No	Nov 2024	Visit
eSpeak NG	6,990	GPL-3.0	LinuxmacOSWindows	No	Sep 2026	Visit
Mycroft Mimic 3	1,268	AGPL-3.0	LinuxmacOSWindowsDocker	Yes	Mar 2025	Visit

Top open-source Amazon Polly alternatives

Coqui TTS46,177MPL-2.0

Open-source text-to-speech and voice cloning toolkit replacing ElevenLabs with local, multi-model Python inference across 1,100 languages.

LinuxmacOSWindowsDocker

vs Amazon Polly: a free, open-source option you fully control, licensed MPL-2.0.

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Suno Bark39,285MIT

Suno Bark is an open-source text-to-audio model alternative to ElevenLabs that runs locally in Python to generate speech with laughter and sighs.

LinuxmacOSWindows

vs Amazon Polly: a free, open-source option you fully control, licensed MIT.

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Sherpa ONNX15,686Apache-2.0

Sherpa ONNX is an offline speech processing engine replacing cloud voice APIs with local text-to-speech and recognition across mobile and edge hardware.

LinuxmacOSWindowsandroidios

vs Amazon Polly: a free, open-source option you fully control, licensed Apache-2.0.

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Tortoise TTS14,892Apache-2.0

Self-hosted text-to-speech engine and ElevenLabs alternative that generates realistic voice clones locally using autoregressive and diffusion models.

LinuxmacOSWindows

vs Amazon Polly: a free, open-source option you fully control, licensed Apache-2.0.

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eSpeak NG6,990GPL-3.0

Compact open-source speech synthesizer replacing Speechify with lightweight, offline command-line text-to-speech for over 100 languages.

LinuxmacOSWindows

vs Amazon Polly: a free, open-source option you fully control, licensed GPL-3.0.

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Best Open Source Alternatives to Amazon Polly

Amazon Polly

Amazon Polly alternatives compared

Top open-source Amazon Polly alternatives

The modern standard for Protobuf workflows

Mentoring for backend developers. Consulting for startups.

More alternatives to Amazon Polly

Mycroft Mimic 3